Star system
HR 7221
Economy
Agriculture / Tourism
Government
Feudal
Allegiance
Empire
Star type
Class K star (orange giant) Scoopable
Coordinates
58.53 / -55.81 / 91.25
Permit required
No
Powerplay
Exploited
Powers
Zemina Torval (Controlling)
︎ HR 7221 - Class K star (orange giant)
Body distance-Solar masses0.5430Solar radius0.7472︎ HR 7221 1 - High metal content world Landable
Body distance112 LsEarth masses0.4331Radius4,725 kmGravity0.79 gSurface temperature877 K (604°C/1,118°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Ruthenium: 1.3%︎ Tin: 1.4%︎ Tungsten: 1.1%︎ Chromium: 9.4%︎ Manganese: 8.6%︎ Zinc: 5.7%︎ Carbon: 12.6%︎ Iron: 20.9%︎ Nickel: 15.8%︎ Phosphorus: 8.1%︎ Sulphur: 15.0%︎ HR 7221 2 - High metal content world Landable
Body distance112 LsEarth masses0.3760Radius4,523 kmGravity0.75 gSurface temperature877 K (604°C/1,118°F)Surface pressure0.00 atmVolcanismAtmosphereTerraforming︎ Yttrium: 1.3%︎ Mercury: 1.0%︎ Niobium: 1.5%︎ Chromium: 9.9%︎ Germanium: 4.7%︎ Vanadium: 5.4%︎ Carbon: 13.3%︎ Iron: 22.0%︎ Nickel: 16.7%︎ Phosphorus: 8.5%︎ Sulphur: 15.8%︎ HR 7221 3 - High metal content world Landable
Body distance196 LsEarth masses6.2883Radius10,224 kmGravity2.45 gSurface temperature662 K (389°C/732°F)Surface pressure0.00 atmVolcanismMajor Silicate vapour geysersAtmosphereTerraforming︎ Ruthenium: 1.4%︎ Molybdenum: 1.4%︎ Niobium: 1.5%︎ Germanium: 4.7%︎ Manganese: 9.1%︎ Vanadium: 5.4%︎ Carbon: 13.3%︎ Iron: 22.1%︎ Nickel: 16.7%︎ Phosphorus: 8.5%︎ Sulphur: 15.8%︎ HR 7221 4 - High metal content world
Body distance1,387 LsEarth masses4.7866Radius9,512 kmGravity2.15 gSurface temperature1,488 K (1,215°C/2,219°F)Surface pressure3,438.21 atmVolcanismMajor Silicate vapour geysersAtmosphereHot Thick WaterTerraforming︎ HR 7221 5 - Water world
Body distance1,887 LsEarth masses4.7675Radius9,480 kmGravity2.16 gSurface temperature395 K (121°C/251°F)Surface pressure27.42 atmVolcanismMajor Silicate vapour geysersAtmosphereThick AmmoniaTerraforming︎ HR 7221 5 a - Earth-like world
Body distance1,884 LsEarth masses0.1909Radius3,850 kmGravity0.52 gSurface temperature285 K (11°C/53°F)Surface pressure2.31 atmVolcanismAtmosphereSuitable for water-based lifeTerraformingTerraformed︎ HR 7221 6 - High metal content world
Body distance2,501 LsEarth masses2.5516Radius7,997 kmGravity1.62 gSurface temperature199 K (-74°C/-102°F)Surface pressure11.98 atmVolcanismMinor Silicate vapour geysersAtmosphereThick NitrogenTerraforming︎ HR 7221 7 - Water world
Body distance4,666 LsRing/belt typeRocky (Major)Earth masses3.6209Radius9,372 kmGravity1.68 gSurface temperature330 K (57°C/135°F)Surface pressure30.81 atmVolcanismMinor Metallic magmaAtmosphereThick Carbon dioxideTerraforming︎ HR 7221 7 a - Rocky body
Body distance4,669 LsEarth masses0.0274Radius2,066 kmGravity0.26 gSurface temperature279 K (5°C/42°F)Surface pressure5.00 atmVolcanismAtmosphereThick Carbon dioxideTerraforming